Pith Number

pith:63RTSQNX

pith:2015:63RTSQNXKXTB73UH63DWQM57HK

not attested not anchored not stored refs pending

Relevance of Negative Links in Graph Partitioning: A Case Study Using Votes From the European Parliament

Israel Mendon\c{c}a (LIA), Philippe Michelon (LIA), Rosa Figueiredo (LIA), Vincent Labatut (LIA)

arxiv:1507.04215 v2 · 2015-07-15 · cs.SI · cs.RO · math.OC · physics.soc-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{63RTSQNXKXTB73UH63DWQM57HK}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:26:02.652130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6e33941b755e61fee87f6c76833bf3aab7bce670cc4ffe55b971320fd62a422

Aliases

arxiv: 1507.04215 · arxiv_version: 1507.04215v2 · doi: 10.48550/arxiv.1507.04215 · pith_short_12: 63RTSQNXKXTB · pith_short_16: 63RTSQNXKXTB73UH · pith_short_8: 63RTSQNX

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/63RTSQNXKXTB73UH63DWQM57HK \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: f6e33941b755e61fee87f6c76833bf3aab7bce670cc4ffe55b971320fd62a422

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47214a103680e94c884d92f58783a0a20cc688362d6a8e4ea825fac9c876edad",
    "cross_cats_sorted": [
      "cs.RO",
      "math.OC",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2015-07-15T13:46:55Z",
    "title_canon_sha256": "bed59eeb01affbc591be9385a171756e2e5fd448edd01bef55b494abf99af4ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.04215",
    "kind": "arxiv",
    "version": 2
  }
}